Missouri operates approximately 50 air monitoring sites across the state. The monitors measure pollutants and collect data to determine whether Missouri meets federal and state air quality standards, report daily air quality and track trends in air pollution levels over time. Select an air monitoring site to learn more about each pollutant monitored and the data results for each site.
- Air Monitoring Sites in Jefferson County
- Air Monitoring Sites in Southeast Missouri
- Air Monitoring Sites - GIS Map
To sort the table by field, click on the County or Station column headings in the table.
| County | Station Sort descending | Pollutants Monitored |
|---|---|---|
| Jasper | Alba Air Monitoring Site | Ozone |
| Jefferson | Arnold West Air Monitoring Site | Ozone, Particulate Matter |
| St. Louis (city) | Blair Street, NCore Site, St. Louis City Air Monitoring Site | Carbon Monoxide, Nitrogen Dioxide, Ozone, Particulate Matter, Sulfur Dioxide |
| Jackson | Blue Ridge I-70, Near Road in Kansas City, Air Monitoring Site | Carbon Monoxide, Nitrogen Dioxide, Particulate Matter |
| Ste. Genevieve | Bonne Terre Air Monitoring Site | Ozone |
| St. Louis (city) | Branch Street Air Monitoring Site | Particulate Matter |
| Iron | Buick Northeast Air Monitoring Site | Lead, Sulfur Dioxide |
| Jasper | Carthage Air Monitoring Site | Particulate Matter |
| Iron | Doe Run Buick County Road 75 Industrial Air Monitoring Site | Sulfur Dioxide |
| Iron | Doe Run Buick Hwy 32 Northeast Industrial Air Monitoring Site | Sulfur Dioxide |